Mr. Sherred
Name
Physics
Date
Create a free body diagram for the following situations.
Do Now!
1. Diagram the forces acting on a bike rider who is pedaling very hard causing the bike to speed up
heading directly east (neglect air resistance).
Fill in the blanks in the textbox on the left and show the free body diagram in the textbox on the right .
The forces are
a. Balanced
b. Unbalanced
Direction of net force is
Force Labels to Consider
Draw and label free body diagram below
S M L (normal)
S M L (tension)
S M L (friction)
______________
S M L (gravity)
Direction of acceleration is
S M L (applied)
_______________
S M L (air resistance)
2. Think of a situation in which someone is pushing a solid object to the right at constant velocity on a
table top. A frictional force should be included and should be compared to whatever force is
moving the object.
Write the situation in the textbox on the left and show the free body diagram in the textbox on the right .
Write the situation below.
Force Labels to Consider
S M L (normal)
S M L (friction)
S M L (gravity)
S M L (applied)
S M L (air resistance)
S M L (tension)
Draw and label free body diagram below
3. Create a situation where an object is in free fall. This situation should state clearly that the only
important force is gravity (talk about what to do with air resistance).
Write the situation in the textbox on the left and show the free body diagram in the textbox on the right.
Write the situation below.
Force Labels to Consider
Draw and label free body diagram below
S M L (normal)
S M L (friction)
S M L (gravity)
S M L (applied)
S M L (air resistance)
S M L (tension)
4.
Think of a situation where a solid object is moving to the left and slowing down. It should be
slowing down because of friction.
Write the situation in the textbox on the left and show the free body diagram in the textbox on the right.
Write the situation below.
Force Labels to Consider
Draw and label free body diagram below
S M L (normal)
S M L (friction)
S M L (gravity)
S M L (applied)
S M L (air resistance)
S M L (tension)
5. Think of a situation where an object is moving at constant speed in one direction.
Write the situation in the textbox on the left and show the free body diagram in the textbox on the right.
Write the situation below.
Force Labels to Consider
S M L (normal)
S M L (friction)
S M L (gravity)
S M L (applied)
S M L (air resistance)
S M L (tension)
Draw and label free body diagram below